★★★★✰ Sixteen choreographers, 13 new works, 2 dancers, 70 minutes, 4 years in the making. That’s the equation for Double Exposure, premiered by the San Francisco contemporary-dance duo RAWdance on Thursday, July 28. It’s an epic production that is greater than the sum of its parts.

Every May for the past nine years the SFIAF presented an amazing array of live music, theater and dance from all over the world. Most of these performers would never be seen here in San Francisco if it weren’t for festival director Andrew Wood’s fanatic desire to bring as many diverse groups as the limited budget will allow.